The Trouble with Relationships often means the need for Better Communication!

If you are a 33 year old single mother, and want a commitment from a 22 year old man you has captured your heart...
And he occasionally disappears on you?
What should you do?

Let's start this off by saying this:
Horoscope generalities in character traits are not per se the end all definitive outlining characterization for everyone born with in that zodiac sign.
For example, Aquarians are typically characterized as aloof and free spirited...but I bet if you interviewed the 240 Million Aquarians on the planet you will find many that are stuffy and boring/nonadventurous.  So, to assume that you can predict a persons behavior based upon their birthday is a bit flat in accuracy.
Every person reacts and lives life based on their own past experiences.  So, by default everyone may behave a little different within the same situation.
Following me so far?
Hopefully...you are...so...

Now, you are 33 and he is 22.  Ok, a twenty two year old...unless they are extremely grounded and mature...will not necessarily desire a relationship with a woman who is 11 years older with a child.  I mean, all situations are different and unique...and I bet that you are a wonderful and thoughtful person.  Smart.  Attractive.  Plain and simple, a good catch...but, your male fellow (at his age), may have other daily agendas...and relationship goals.  Since, I don't know him...it would be unfair of me to speculate beyond that.

Your suspicion/intuiting that he may be loitering in other relationships is probably accurate.  A twenty two year old male, will actively seek multiple partners....unless, they are serious, responsible and family oriented.  Is he?

The fact that he lost his cell...it could be very true.
The fact that he only wishes to communicate via text...many people do, because its easy.  Because its not too involved.  Some people are just not good communicators otherwise.  Poor people skills.

Your romantic poem to him (and about him), albeit...genuine and sweet...vulnerable and sensitive...truthful, honest and open...can and will freighten him if he is not mentally and emotionally ready and competent to commit to you AND your daughter!  The reason why he "hides".

The fact!  Yes, the fact that through your snooping, you found him reactivate his online dating account...means that he is looking for more.

If you wait, you could very well be waiting for an outcome that may disappoint you.
Unless, you talk to him
Face to Face,
And get a verbal commitment from him...
And he proves through his subsequent actions that he wants a to be in a committed relationship with you...and your daughter.
Only then, can you be certain that things will go the way you desire.
In your face to face discussion, you will have to outline and detail what he needs to do to be in a committed relationship with you.
And this is important...
He needs to make up his own mind, make his own decision...without pressure from you.
Stand by him, and assure him that you will respect his decision either way.  
Once, you clear that up...
That is when you will know your fate...
Be good, be well, be healthy and be blessed
Godspeed!
Good luck!!